CFile::GetFileName
Call this member function to retrieve the name of a specified file. For example, when you call GetFileName to generate a message to the user about the file c:\windows\write\myfile.wri, the filename, myfile.wri, is returned.
就是说
文件 c:\windows\write\myfile.wri
返回 myfile.wri
CFile::GetFileTitle
Call this member function to retrieve the file title for a specified file. For example, when you call GetFileTitle to generate a message to the user about the file c:\windows\write\myfile.wri, the file title (myfile) is returned.
就是说
文件 c:\windows\write\myfile.wri
返回 myfile
CFile::GetLength
This method obtains the current logical length of the file in bytes, not the amount